/* ─── LDT v3 — SME Commercial Layout ───────────────────────────────────── */
/* Based on v2 styles with v3-specific additions                           */

:root {
  --bg: #f0f2f5;
  --panel: #ffffff;
  --border: #e0e3e8;
  --accent: #1a56db;
  --accent-light: #eaf0fb;
  --green: #0e9f6e;
  --green-light: #e6f7f0;
  --red: #e02424;
  --red-light: #fde8e8;
  --orange: #d97706;
  --orange-light: #fef3c7;
  --text: #1a1f36;
  --muted: #6b7280;
  --light: #9ca3af;
  --radius: 6px;
  --shadow: 0 1px 2px rgba(0,0,0,0.05);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 13px;
  line-height: 1.45;
}

/* ─── Header ─────────────────────────────────────────────────────────── */

header {
  background: var(--accent);
  color: #fff;
  padding: 8px 16px;
  display: flex;
  align-items: baseline;
  gap: 10px;
}
header h1 { font-size: 14px; font-weight: 700; }
header .subtitle { font-size: 11px; opacity: 0.7; }

/* ─── Top bar (intro + FAQ) ──────────────────────────────────────────── */

.top-bar {
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}
.top-bar .intro p {
  font-size: 12px;
  color: var(--text);
  line-height: 1.55;
  margin-bottom: 4px;
}
.top-bar .intro .intro-note {
  font-size: 11px;
  font-style: italic;
  color: var(--light);
  margin-bottom: 6px;
}

.top-bar-buttons {
  display: flex;
  gap: 6px;
  margin-top: 4px;
  margin-bottom: 4px;
}

.faq-toggle-btn {
  background: none;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 600;
  color: var(--accent);
  cursor: pointer;
}
.faq-toggle-btn:hover { background: var(--accent-light); }

.collab-toggle-btn {
  background: none;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 600;
  color: var(--green);
  cursor: pointer;
}
.collab-toggle-btn:hover { background: var(--green-light); }

.faq-wrap { display: none; margin-top: 8px; columns: 2; column-gap: 12px; }
.faq-wrap.visible { display: block; }

.collab-wrap { display: none; margin-top: 8px; columns: 2; column-gap: 12px; }
.collab-wrap.visible { display: block; }

.collab-item {
  break-inside: avoid;
  background: var(--green-light);
  border-radius: 4px;
  padding: 8px 10px;
  margin-bottom: 8px;
  font-size: 11px;
  line-height: 1.55;
}
.collab-item h4 {
  font-size: 11px;
  font-weight: 600;
  color: var(--green);
  margin-bottom: 3px;
}
.collab-item p { color: var(--muted); margin: 0; }

.faq-item {
  break-inside: avoid;
  background: var(--bg);
  border-radius: 4px;
  padding: 8px 10px;
  margin-bottom: 8px;
  font-size: 11px;
  line-height: 1.55;
}
.faq-item h4 {
  font-size: 11px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 3px;
}
.faq-item p { color: var(--muted); margin: 0; }

/* ─── Pane headers ──────────────────────────────────────────────────── */

.pane-header {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.10em;
  color: #fff;
  background: var(--accent);
  padding: 4px 14px;
  text-align: center;
  border-bottom: 1px solid var(--border);
}
.pane-hint {
  font-size: 10px;
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
  opacity: 0.65;
  font-style: italic;
}

/* ─── Two-pane layout ────────────────────────────────────────────────── */

.layout {
  display: grid;
  grid-template-columns: 340px 1fr;
  min-height: calc(100vh - 80px);
}

/* ─── Left pane — inputs ─────────────────────────────────────────────── */

.pane-left {
  border-right: 1px solid var(--border);
  background: var(--panel);
  height: calc(100vh - 80px);
  overflow-y: auto;
  position: sticky;
  top: 0;
  display: flex;
  flex-direction: column;
}

.sec {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
}
.sec:last-of-type { border-bottom: none; }

.sec-numbered {
  border-bottom: none;
  margin-bottom: 6px;
  background: var(--panel);
  border-radius: 0;
  position: relative;
}
.sec-numbered + .sec-numbered {
  border-top: 4px solid var(--bg);
}

.sec h2 {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--accent);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.sec-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  flex-shrink: 0;
}

.sec-optional {
  font-weight: 400;
  text-transform: none;
  color: var(--light);
  font-size: 9px;
  letter-spacing: 0;
}

.sec-note {
  font-size: 10px;
  color: var(--light);
  margin-bottom: 6px;
  line-height: 1.4;
}

/* ── Form fields ──────────────────────────────────────────────────── */

.fg { margin-bottom: 8px; }
.fg:last-child { margin-bottom: 0; }

.fg label {
  display: block;
  font-size: 10px;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 2px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.fg input[type="text"],
.fg input[type="number"],
.fg select,
.fg textarea {
  width: 100%;
  padding: 5px 7px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 12px;
  background: #fafbfc;
  color: var(--text);
  font-family: inherit;
}
.fg textarea {
  resize: vertical;
  font-size: 11px;
  line-height: 1.4;
  font-family: "SF Mono", "Menlo", "Monaco", monospace;
}
.fg input:focus, .fg select:focus, .fg textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 1px rgba(26,86,219,0.15);
}

.helper {
  display: block;
  font-size: 10px;
  color: var(--light);
  margin-top: 1px;
  line-height: 1.35;
}

.row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px; }

/* ── Derived values ───────────────────────────────────────────────── */

.derived-val {
  background: var(--accent-light);
  color: var(--accent);
  border-radius: 4px;
  padding: 5px 8px;
  font-size: 12px;
  font-weight: 600;
}
.eff-val { margin: 6px 0 8px; }

/* ── File upload ──────────────────────────────────────────────────── */

.file-upload-area {
  border: 1px dashed var(--border);
  border-radius: 4px;
  padding: 12px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s;
}
.file-upload-area:hover { border-color: var(--accent); background: var(--accent-light); }
.file-upload-area.has-file { border-color: var(--green); background: var(--green-light); }
.file-upload-area .upload-icon { font-size: 16px; }
.file-upload-area .upload-text { font-size: 11px; color: var(--muted); }
.file-upload-area .file-name { font-size: 11px; color: var(--green); font-weight: 600; }
.file-upload-area input[type="file"] { display: none; }

.upload-actions { display: flex; gap: 6px; margin-top: 6px; }

.btn-sm {
  padding: 3px 10px;
  font-size: 11px;
  font-weight: 600;
  border-radius: 4px;
  cursor: pointer;
  border: 1px solid var(--accent);
  background: var(--accent-light);
  color: var(--accent);
}
.btn-sm:hover { background: var(--accent); color: #fff; }
.btn-ghost { border-color: var(--border); color: var(--muted); background: #fff; }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-light); }

/* ── Reinsurance layer inputs ─────────────────────────────────────── */

.reins-section { margin-top: 8px; }
.reins-label {
  display: block;
  font-size: 10px;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 4px;
}
.reins-row {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 4px;
  margin-bottom: 4px;
}
.reins-row input {
  width: 100%;
  padding: 4px 6px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 11px;
  background: #fafbfc;
}
.reins-row input:focus {
  outline: none;
  border-color: var(--accent);
}
.reins-remove {
  padding: 2px 6px !important;
  font-size: 13px !important;
  line-height: 1;
}

/* ── Run button (sticky bottom of input pane) ─────────────────────── */

.run-sec {
  margin-top: auto;
  position: sticky;
  bottom: 0;
  background: var(--panel);
  border-top: 1px solid var(--border);
  padding: 10px 14px;
  z-index: 10;
}

.run-btn {
  width: 100%;
  padding: 8px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 4px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
}
.run-btn:hover { background: #1648c0; }
.run-btn:disabled { background: #9ab0f5; cursor: not-allowed; }

.cap-toggle {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 10px;
  color: var(--muted);
  margin-top: 4px;
}
.cap-toggle input { margin: 0; }

/* ─── Right pane — results ───────────────────────────────────────────── */

.pane-right {
  padding: 0;
  overflow-y: auto;
}
.pane-right .results-area,
.pane-right .placeholder,
.pane-right #warnings_area,
.pane-right #errors_area {
  padding-left: 16px;
  padding-right: 16px;
}
.pane-right .results-area { padding-top: 10px; padding-bottom: 12px; }
.pane-right .placeholder { padding-top: 12px; }

.placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 200px;
  color: var(--light);
  font-size: 12px;
}

.results-area { display: none; }
.results-area.visible { display: block; }

/* ── Alert boxes ──────────────────────────────────────────────────── */

.alert {
  border-radius: 4px;
  padding: 6px 10px;
  font-size: 11px;
  margin-bottom: 8px;
  line-height: 1.4;
}
.alert-warning { background: var(--orange-light); color: var(--orange); border: 1px solid #fbbf24; }
.alert-error { background: var(--red-light); color: var(--red); border: 1px solid var(--red); }

/* ── Top cards row (Broker + Policy Relevance side-by-side) ──────── */

.top-cards-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

/* ── Result cards ─────────────────────────────────────────────────── */

.res-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 12px;
  box-shadow: var(--shadow);
  margin-bottom: 8px;
}
.res-card h3 {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent);
  margin-bottom: 6px;
}

.card-subtitle {
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
  color: var(--light);
  font-size: 9px;
  margin-left: 4px;
}

.res-primary {
  border-left: 3px solid var(--accent);
  background: var(--accent-light);
}
.res-primary .summary-text {
  font-size: 13px;
  line-height: 1.65;
  color: var(--text);
  font-weight: 500;
}

/* Policy relevance card — orange accent */
.res-policy-relevance {
  border-left: 3px solid var(--orange);
  background: var(--orange-light);
}
.res-policy-relevance h3 { color: var(--orange); }
.res-policy-relevance .relevance-text {
  font-size: 12px;
  line-height: 1.55;
  color: var(--text);
}

/* Provenance card */
.res-provenance {
  border-left: 3px solid var(--muted);
  background: #f9fafb;
}
.res-provenance h3 { color: var(--muted); }
.provenance-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2px 10px;
  font-size: 11px;
}
.provenance-grid .prov-label {
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  font-size: 9px;
  letter-spacing: 0.03em;
  padding-top: 1px;
}
.provenance-grid .prov-value {
  color: var(--text);
}

/* Consolidated metrics table */
.metrics-table-card {
  padding: 8px 10px;
  max-width: 520px;
  margin: 0 auto 8px;
}
.metrics-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 11px;
}
.metrics-table th {
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  font-weight: 600;
  padding: 2px 6px;
  text-align: right;
  border-bottom: 1px solid var(--border);
}
.metrics-table th:first-child { text-align: left; }
.metrics-table td {
  padding: 3px 6px;
  text-align: right;
  border-bottom: 1px solid #f0f2f5;
  font-variant-numeric: tabular-nums;
}
.metrics-table td.row-label {
  text-align: left;
  font-weight: 600;
  font-size: 11px;
  color: var(--text);
}
.metrics-table tr.row-highlight {
  background: var(--green-light);
}
.metrics-table tr.row-highlight td { font-weight: 600; }
.tbl-sub {
  font-size: 10px;
  color: var(--muted);
  font-weight: 400;
}
.metrics-table tr.row-separator td {
  border-bottom: 2px solid var(--border);
  padding: 0;
  height: 4px;
}
.metrics-table tr.row-muted td {
  color: var(--muted);
  font-size: 10px;
}
.metrics-table td.val-na {
  color: var(--light);
  font-style: italic;
}

/* Insurance effect card — highlighted */
.res-card.res-highlight {
  border-left: 3px solid var(--green);
  background: var(--green-light);
}
.res-card.res-highlight h3 { color: var(--green); }

/* KPI stat grid (inherited, may not be used in v3) */
.kpi-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
}
.kpi { padding: 4px 0; }
.kpi .kpi-label {
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  margin-bottom: 1px;
}
.kpi .kpi-value {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.2;
}
.kpi .kpi-sub {
  font-size: 10px;
  color: var(--muted);
}

.delta-good { color: var(--green); }
.delta-bad { color: var(--red); }
.delta-neutral { color: var(--muted); }

/* Policy relevance */
.relevance-text { font-size: 12px; color: var(--text); line-height: 1.5; }

/* ── EP charts ────────────────────────────────────────────────────── */

.ep-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 8px;
}
.ep-chart {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 10px;
  box-shadow: var(--shadow);
  min-width: 0;
}
.ep-chart h3 {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent);
  margin-bottom: 4px;
}

/* ── Event table ──────────────────────────────────────────────────── */

.evt-section { margin-bottom: 8px; }

.toggle-btn {
  background: none;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 5px 10px;
  font-size: 11px;
  color: var(--accent);
  cursor: pointer;
  width: 100%;
  text-align: left;
  font-weight: 600;
}
.toggle-btn:hover { background: var(--accent-light); }

.event-table-wrap { display: none; margin-top: 6px; overflow-x: auto; }
.event-table-wrap.visible { display: block; }

.event-table { width: 100%; border-collapse: collapse; font-size: 11px; }
.event-table th {
  background: var(--accent-light);
  color: var(--accent);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  font-size: 9px;
  padding: 4px 6px;
  text-align: right;
  white-space: nowrap;
  border-bottom: 1px solid var(--accent);
}
.event-table th:first-child { text-align: left; }
.event-table td {
  padding: 3px 6px;
  border-bottom: 1px solid var(--border);
  text-align: right;
  white-space: nowrap;
}
.event-table td:first-child { text-align: left; font-weight: 600; }
.event-table tr:hover td { background: #f5f7fa; }

/* ─── Responsive — stacked on smaller screens ────────────────────────── */

@media (max-width: 860px) {
  .layout {
    grid-template-columns: 1fr;
  }
  .pane-left {
    position: static;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .faq-wrap { columns: 1; }
  .collab-wrap { columns: 1; }
  .top-cards-row { grid-template-columns: 1fr; }
  .ep-row { grid-template-columns: 1fr; }
  .kpi-row { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 500px) {
  .row-2, .row-3 { grid-template-columns: 1fr; }
  .kpi-row { grid-template-columns: 1fr 1fr; }
}